131266450265 has 8 divisors (see below), whose sum is σ = 157532669448. Its totient is φ = 105004540800.

The previous prime is 131266450247. The next prime is 131266450277. The reversal of 131266450265 is 562054662131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3425877961 + 127840572304 = 58531^2 + 357548^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131266450265 - 2⁸ = 131266450009 is a prime.

It is a super-3 number, since 3×131266450265³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010036 + ... + 1132565.

It is an arithmetic number, because the mean of its divisors is an integer number (19691583681).

Almost surely, 2^131266450265 is an apocalyptic number.

It is an amenable number.

131266450265 is a deficient number, since it is larger than the sum of its proper divisors (26266219183).

131266450265 is a wasteful number, since it uses less digits than its factorization.

131266450265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154859.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 131266450265 in words is "one hundred thirty-one billion, two hundred sixty-six million, four hundred fifty thousand, two hundred sixty-five".